Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/point_in_poly.h

@@ -0,0 +1,36 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
+// 
+// This Source Code Form is subject to the terms of the Mozilla Public License 
+// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
+// obtain one at http://mozilla.org/MPL/2.0/.
+#ifndef IGL_POINT_IN_POLY_H
+#define IGL_POINT_IN_POLY_H
+#include "igl_inline.h"
+
+#include <vector>
+
+namespace igl
+{
+  // Determine if 2d point is inside a 2D polygon
+  // Inputs:
+  //   poly  vector of polygon points, [0]=x, [1]=y. 
+  //         Polyline need not be closed (i.e. first point != last point), 
+  //         the line segment between last and first selected points is constructed 
+  //         within this function.
+  //   x     x-coordinate of query point
+  //   y     y-coordinate of query point
+  // Returns true if query point is in polygon, false otherwise
+  // from http://www.visibone.com/inpoly/
+bool IGL_INLINE point_in_poly( const std::vector<std::vector<unsigned int > >&poly, 
+            const unsigned int xt, 
+            const unsigned int yt);
+
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "point_in_poly.cpp"
+#endif
+
+#endif